WattMaster MG331-21-VAVCAV - Manual (Page 5)

Form: WMS-OE353-4SlotBaseBoard-1B.doc
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VAV System
Description
The OE353 – 4 Slot Modular I/O Base
Board is used in conjunction with the fol-
lowing Modular Expansion Boards:
•
O354 – 4 Analog Input &
1 Analog Output
• OE355 – 4 Analog Output
• OE356 – 4 Digital Inputs
• OE357 – 4 Relay Outputs
For easy wiring the OE353 – 4 Slot
Modular I/O Base Board provides for up
to (4) of the above expansion boards to
be connected to it by means of an integral
male/female push-in connector arrange-
ment. Power is supplied to the Expansion
Boards through this connector, simplifying
installation and connection. Jumpers are
also provided on the OE353 Modular I/O
Base Board for addressing and configu-
ration of the Modular Expansion Board(s).
Any combination of Modular Expansion
Boards may be connected to the OE353
Modular I/O Base Board to provide the
input/output capabilities required.
The main controller software used with
the OE353 Modular I/O Base determines
which Modular Expansion Boards may be
used.
Mounting
The OE353 – 4 Slot Modular I/O Base
Board is supplied mounted on a plastic
Snap Track channel. The Snap Track
channel has two mounting holes, which
are used to field mount the board with the
provided screws. The board should be
mounted in close proximity to the MG331-
21-VAV HVAC Unit Controller board to
allow for connection of the modular cable.
Technical Data OE353 – 4 Slot
Modular I/O Base Board
Operating
Power 24 VAC Power Consumption 5 VA Maximum
Operating Temp 10 ° F to 149 ° F Operating Humidity 90% RH Non-Condensing
Communications Integral I
2
C Chip Weight 8 oz.
Qty of Slots Provided For
Modular Expansion Boards 4 Mounting Provisions Supplied with
Snap Track Base
Three Year Warranty WattMaster reserves the right to change specifications without notice
OE353 – 4 Slot
Modular I/O Base Board